whatsvtec
Active Member
So I've been searching/looking at this stuff for a while. i see how people say they see big improvements with this but ive heard it can be a bad idea to do with a car with over 100kmiles, heard it eats at rings and other stuff. my car has 170k and i was wondering if i should sea foam my car?any bad comments about this product? and if done how immediate do i need to oil change, minutes after, hours, a day?